Customer Ratings & Reviews

I have a Ram 2500 with the 6.4l hemi. Came stock with Pennzoil. I switched it over to Amsoil 0w-40 on its first oil change. I change the oil around 7k miles as I'm always loaded or towing and really working it. Currently at 100k miles and everything's still singing like new!

Truck starts nicer in the AM in cold weather, engine warms up quicker. Oil still looked gold after 3000 km. Love this product and always recommending

I’ve never tried the soil before until it was recommended to me so far so good

outstanding protection

My Murano loved it will be what only I buy now on

This is all I use in Chrysler 300

The only oil I’ll use in my performqnce motors.

Hands down best oil ever!

190000 and still going strong

I run this oil in my 2022 Ford ranger. It has the Ecoboost engine, so I want the best protection out there and that is Amsoil signature series.

200,000 miles and ive never used anything else

Top tier oil

Hi I am very happy with this product it is a great quality and I completely trust it in all my vehicles. Thank you .

We have been using Amsoil since 1989 and have not looked back. Because we have so many Kim’s to drive it is nice not having to change your oil every month it’s just once a year along with the proper amsoil oil filter they go hand in hand

This oil is the best oil for a snowblower across various temperature ranges.

I have seen the oil analysis sheets for this product compared to others and if you want the best for your engine, this is it. By a large margin.

Great oil. 25k between oil changes. My engine knows the difference

Once again, amazing product. I've never experienced such a dramatic decrease in the sound of the engine. Ticks and clicks went away, sound is much more quiet, and everything is far smoother during excelleration.

I've been a car guy since the day I was born. I've built cars, restored cars, you name it. I've never experienced such a severe change in the sound of an engine just from changing the oil. My wife's Honda CRV ran like a normal Honda, little ticks and clicks that naturally happen from an engine. Nothing wrong with it, it's brand new, just your everyday sounds. But once I changed the oil, using AMSOIL Signature, the sound of the engine dramatically decreased, no more ticks and clicks, and the excelleration of the vehicle is so much smoother.

Been using AMSOIL for quite some time. I have a Honda, valves need adjusting every 15k miles. I find no staining of the aluminum, no sludge or wear of the camshaft - 126k. I can’t argue with that.